/***************************************************************************
 *   Copyright (C) 2007 by Ivan Vasić                    *
 *   ivasic@gmail.com                     *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/
#ifndef LOG_H
#define LOG_H

#include <QObject>
#include <QList>
		
class LogObserver;

/**
 * @class Log
 * @brief Klasa za rukovanje log porukama i posmatracima log poruka.
 * @author Ivan Vasić <ivasic@gmail.com>
*/
class Log : public QObject
{
		Q_OBJECT
	public:
		Log(QObject *parent = 0);
		~Log();

		/**
		* @brief Registruje LogObserver objekat.
		* 
		* U svaki registrovani LogObserver će biti upisane informacije o logovanim porukama.
		* Da bi izbacili neki LogObserver iz liste koristite Log::unregisterObserver()
		* 
		* @see LogObserver::write()
		* @see Log::unregisterObserver()
		* @see Log::logMessage()
		*/
		void registerObserver(LogObserver*);

		/**
		 * @brief Izbacuje LogObserver objekat iz liste observera.
		 *
		 * Da bi registrovali neki LogObserver iz liste koristite Log::registerObserver()
		 * 
		 * @see LogObserver::write()
		 * @see Log::registerObserver()
		 * @see Log::logMessage()
		 */
		void unregisterObserver(LogObserver*);

		void logRichMessage(const QString& msg);
		void logMessage(const char* msg);

	private:
		/**
		 * @brief Svi registrovani observeri.
		 * 
		 * Lista svih objekata koji treba da dobiju kopiju informacije o izuzetku koji se loguje.
		 * 
		 * @see LogObserver::write()
		 * @see Log::logMessage()
		 * @see Log::registerObserver()
		 * @see Log::unregisterObserver()
		 */
		QList<LogObserver*> m_observers;
};

#endif
